Sure thing, let's get straight to it. We start with 673 and we're going to multiply it by 4, which means adding 673 to itself 4 times.
Step 1: 0 + 673 = 673
Step 2: 673 + 673 = 1346
Step 3: 1346 + 673 = 2019
Step 4: 2019 + 673 = 2692

So, 673*4 = 2692